Water-heater



(No Model.) n l TILE. HARRINGTON.

WATER HEATER.

Patented Dec. 4, 1888.

ATTORNEYS.

N. FETKRS, Phalmmlwgmpher. washingnm, u. C.

UNITED STATES PATENT OFFICE.

HERBERT EUGENE HARRINGTON, OF YALDEN, VERMONT.

WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 393,900, dated December4, 1888. l

Application filed April 5, 1888. Serial No. 269,650. (No model.)

To all whom if may concern,.-

Be it known t-hat I, HERBERT EUGENE HAR- RINGTON, of Valden, in thecounty of Caledonia and State of Vermont, have invented a new andImproved Vater-Heater, of which the following is a full, clear, andexact description.

My invention relates to a heater to be set into a trough or tank holdingwater for heating the water to any required degree, as drink for stock,or for tempering milk or cream, or for other purposes about a farm orhouse; and the trating the stop o r lug-latch devices holding,

invention has for its obj ect to provide a simple, inexpensive, durable,and efficient heater o f this character.

The invention consists in certain novel features of construction andcombinations of parts of the heater, all as hereinafter described andclaimed.

Reference is to be had to the accompanyingV drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a vertical sectional elevation of my improved water-heaterset in a trough or tank of water as in use. Fig. 2 is aplan view of theheater removed from the trough, the draft-pipe being in horizontalsection. Fig. 3 is a plan view of the heater in horizontal section onthe line w Qc, Fig. l. Fig. lis a like view with the fire-box Vset inanother position and with a grate indicated in dotted lines. Fig. 5 is adetail vertical sectional View illustrating the stop-lug or device Onthe fire-box cover, and Figs. 6, 7 and 8 are detail views illusthenre-box in position for a circuitous draft therefrom to the flue of theouter shell.

The heater consists, mainly, of an outer shell or wall, A, of sheetmetal, preferably galvanized iron, and provided with a draft or smokeflue, a, and containing a somewhat smaller vessel, B, which is the iireboX or pot of the heater. Vtlhen the heater is in use, it

'will be placed in a trough or tank, C, holding water c, and the outershell, A, will preferably beV fastened to the bottom of the trough byscrews or bolts d, passed through lugs D, fixed to the shell. The smokeor draft flue a connects with the heater-shell A, preferably near thebottom of the shell, to give its heat -to the water, and extends abovethe top of the trough C, where it will receive an ordinary stove-pipe,to get ample draft from the casing. The casing extends quite to the topof the trough, so that the water c therein cannot enter the casing, allas shown most clearly in Fig. l of the drawings. The details ofconstruction are as follows: The fire-box B is made with a sheet-metalbody portion, l), having a vertically-ranging slot, b', or it may be avertical series of holes instead ofthe slot. consists of a cast-metalplate, o?, held to the body by screws or bolts, and at the upper end ofthe body is fastened by screws or bolts acast metal ring, b3, having alateral flange, b4, by or from which the entire fire-box is supportedfrom a horizontal flange, a2, on a cast-metal collar or fiange, a',screwed or bolted to the inside of the shell or casing A and so as tohold the iire-box centrally in the shell and leave a clear space, E, ofabout an inch or a little more all around between the sides of the shelland fire-box and hold the box-bottom clear of the bottom of theshell,'thus providing an air-space all around the sides and bottom ofthe fire-boxv within the shell. The shell is provided at the inside witha radial or nearly radial and vertically-ran ging narrow-plate, F, whichstands at one side of the opening of the flue a to the shell and againstor towhich a vertically-ranging plate, G, fixed to the outside of the{ire-box, may be brought, by turning the boX, to regulate thedraft-circuit through the heater. Aty its upper end the plate G isprovided with a radially-proj ectin g lug, g, which may be set intoeither of two notches, a3 CL3, which are formed by cutting out thefire-box, supporting flange CL2 at each side of the partition F, whichextends to the top of the collar-flange. The arrangement of the plate Gand its locking-lug g, with the lire-box ring b4, is most clearly shownin the perspective view, Fig. S. plate F, with the collar o and itsflange a2, and notches CL3 a3 is most clearly shown in the inside faceview, Fig. 7, and the engagement of the lug g of the plate G with thenotches a3 is shown most clearly in the under side view, Fig. 6 ,of thedrawings.

In the fire-box, at one side of its center and opposite the slot b', isfitted a vertical plate or partition, H, which may be made of cast metalThe arrangement of the The bottom of the fire-box IOO at its lowel partand of sheet metal at its upper part, and does not extend to the bottomof the lire-box, and thereby provides in the box an air-inlet fine, l,and the main fuel-holding chamber J, which communicate with each otherthrough a passage, i, left below the partition 1I, and a hole, Il, madein the partition above said passage.

The cover of the tire-box is made in two io parts-a main part, K, whichtits the top of the fuel-chamber J, and a smaller segmental portion, L,which forms the lid of the air-liuc l, and is hinged at [to the part Kof the cover, and has a shoulder, l', which strikes a shoulder, on thepart K when the air-fine is closed by the lid. The cover has a handle,7s, tixed to its part K, and by which it may be lifted from thefire-box, and thepart K of the cover also has a lug, k2, at its underside, 2o which may be set against the top of the partition ll as a stopto set the cover by, so that its part L shall properly close theair-line I of the heater. A suitable bail, M, held to eyes or staples nlinthe upper metal ring or flange, b4, of the heater tire-box, allows thebox to be `readily lifted from or applied to the shell A, and alsoserves as a handle by which to turn the tire-box to adjust its plate Grelatively with the shell-plate F to regulate the draft.

The operation of the heater is as follows: vater having been supplied tothe trough C up to a proper level, and the chamber J of the tire-boxbeing charged with fuel and the cover K applied,the fuel will be ignitedand the draft damper or lid L will be adjusted, preferably, by firstfully opening it, and the tirebox will be lifted to disengage the lug gof plate G from the notch ai; of the casing-eollar a with which it mayhave been engaged, and the tire-box may then be turned so that theplates F G on the shell and box will stand one at each side of theopening to the draft- Hue (l, which will give a direct'. draft from t-hefuel-chamber J through its slot b to the draft- Hue a while the tire iskindlin to more readily pass off the smoke, and when the tire is wellkindled the fire-box will be turned so that its plate G strikes theshell-plate F, as in Fig. 3 of the drawings, and the lug g of plate Gwill 5o then fall into one of the notches a3 to lock the platestogether, and thus cut off the direct draft and compel the entireproducts of combustion from the fuel-chamber J to pass therefrom throughthe slot b into the passage E between the shell and fire-box and make anentire circuit of said passage before tindii1g..exit at the draft-Hue a.If desired,

around, as shown in Fig. 4, in which position 6o the plate-lug g mayenter another notch formed in the easing-collar a', as indicated indotted lines in said figure, and so that the products of combustion maypass each way to the ilue from the tire-box slot Z1', the effect ineither ease being to carry the hot products from the fuel-Chamberagainst the entire inner wall of the shell A, which radiates the heat tothe water c in the trough and warms or heats it to any required degreeto serve as drinkin water for stock or for other purposes about a farmor house. The air-draft to support combustion is downward through theair-line l, and thence through the passages yi 71 below and in thepartition ll to the fuelchamber. The indrat't of air at l' to thefuelchamber at the bottom maintains the fire until the fuel is entirelyconsumed, and the indraft of air to the chamber through the hole 71prevents too rapid vertical spread ot' the fire in the chamber, andassures burning of the fuel laterally around the chamber or tire-box tomaintain a more even heating' ot' the entire wall of the lire-box, andconsequently of the outer shell or casing, A, to secure its best heatingeffect on the-water in the trough. Should coal be used as fuel, a gratewill be fitted at the bottom of the tirebox, as indicated in dottedlilies in Fig. 4 of the drawings.

The entire tire-box may at any time be lifted from the heater shell orcasing for regulating the temperature of the water in the trough or forrecharging the fuel-chamber at a place distant from the trough, as willreadily be understood.

Having thus described my invention, what l claim as new, and desire tosecure by Letters Patent, is-

l. The combination, in a water-heater, of an outer shell, a draft-flueopening into the side of the shell and extending upward clear of it togive off its heat independently, a tire-box supported in the shell, andwith its side walls separate therefrom to provide a hot-airspaceranging' entirely around between the box and shell, and with which spacethe draft-Hue communicates, and said lire-box having a fuelchambercommunicating with tlie space between the box and shell, and also havinga downwardly-extending air-Hue leading to its fuel-chamber, and a coverformed in two parts, one adapted to cover the fuel-chamber and the otheradapted to cover the lire-box airflue and form a damper thereto,substantially as herein set forth.

2. The combination, in a water-heater, of an outer shell or easing, adraft-fine fitted thereto, a fire-boxv supported in the shell so as toprovide an air-space between the box and shell, and said tire-box havinga fuel-chamber communicating by a side opening with the shell, and alsohaving a downwardly-extending airilue leading to the fuel-chamber, and aradial plate or plates fitted in the air-space between the shell andfire-box and providing, by turning the box, for either a direct oreircuitous draft from the fuel-chamber of the box to the casingdraft-flue, substantially as herein set forth.

3. The combination, in a water-heater, with an outer shell or easing, adraft-flue fitted thereto, a fire-box supported in the shell so as toprovide an air-space between the box and shell, and said tire-box havinga fuel- IOO IIO

chamber communicating by a side opening with the shell, and also havinga downwardlyeXtending'air-iiue leading to the fuel-chainber, and aradial plate iitted in the air-space between the shell and fire-box andproviding, by turning the box, for either a direct or circuitous draftfrom the fuel-chamber of the box to the casing draft-line, of a stop-lugand notches locking the cut-off plate or plates to assure an indirectdraft, substantially as herein set forth.

4. The combination, in a water-heater, of a shell,A,having a drafHiue,a, and plate F, and a ring or flange, a', a {ire-box supported 15 by aflange on the flange a and providing a space, E, between the box andshell and having a side opening, b', to said space, and said draft-Huecommunicating with the lower part of the shell and extending upwardclear of it to give off its heat independently, a plate, G, on theiire-box, adapted to the shell-plate F, and said boX also provided witha partition, H, forming in the box a fuel-chamber, J, and air-supplyflue I and providing a lower draftopening, ft', substantially' as hereinset forth.

5. The combination, with a casing having a drafi'fiiue and a iire-boXsupported therein and providing an air-space, E, of plates F G, held tothe casing and lire-box, respectively, andthe fire-box support in thecasing, provided with notches d3, and the plate G, having a lug, g,adapted to said notches, substantially as herein set forth.

HERBERT EUGENE HARRINGTON.

1Witnesses:

MILo O. CHANDLER, MARY F. HARRINGTON.

